基于 PDMS 密封 NCF 偏移传感器同时测量应变和温度

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2024-09-22 DOI:10.1016/j.yofte.2024.103983

Jia Liu , Xianchao Yang , Zhongyang Li , Yuhuai Liu , Jianquan Yao

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引用次数: 0

摘要

设计并演示了一种光纤马赫-泽恩德干涉仪（MZI），用于同时测量应变和温度。利用无芯光纤（NCF）偏移拼接技术制造的一个微腔为马赫-泽恩德干涉仪产生两条不同的光路，然后用聚二甲基硅氧烷（PDMS）密封，以增强应变和温度传感能力。对应变和温度传感特性进行了理论模拟和实验研究。在 0-500 μɛ范围内获得了 -16.3 pm/μɛ 的最大应变灵敏度，在 20-40 ℃范围内获得了 10.45 nm/℃ 的超高温度灵敏度。详细分析了微腔长度的影响，并通过求解二维传感矩阵演示了双参数解调。所设计的传感器具有结构简单、易于制造、对微弱应变和温度高度敏感等优点，使其在结构安全监测或可穿戴式应变和温度检测方面具有巨大潜力。

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Simultaneous measurement of strain and temperature based on PDMS sealed NCF offset sensor

An optical fiber Mach-Zehnder interferometer (MZI) is designed and demonstrated for the simultaneous measurement of strain and temperature. One microcavity fabricated by no-core-fiber (NCF) offset splicing is used to generate two different light paths for MZI, then sealed with polydimethylsiloxane (PDMS) to enhance the strain and temperature sensing ability. The strain and temperature sensing characteristics were simulated theoretically and investigated experimentally. The maximum strain sensitivity of −16.3 pm/μɛ was obtained in the range of 0–500 μɛ, and the ultrahigh temperature sensitivity of 10.45 nm/℃ was obtained in the range of 20–40 °C. The influence of microcavity length was analyzed in detail and the dual-parameter demodulation was demonstrated by solving a two-dimensional sensing matrix. The designed sensor with the merits of simple structure, easy fabrication and highly sensitive to weak strain and temperature, make it of great potential for the structural safety monitoring or wearable strain and temperature detections.

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.